"The first sketch of the portion treating of Voltaire's visit appeared in the form of two articles in the Cornhill magazine for 1882. In 1886 these articles were ... enlarged, and ... appended to Bolingbroke: a historical study ... They are now again revised and extended ... The first sketch of the portion dealing with Montesquieu apeared some years ago ... in the Quarterly review ... The portion dealing with Rousseau appeared in its first form in the Quarterly review nearly ten years ago."--Pref
Evidence reported by MarkGraves for item voltairemontesqu00collrich on July 30, 2008: no visible notice of copyright; stated date is 1908.